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3 years ago

What is the slope of a line that is perpendicular to 4x-8y=64

Mathematics

1 answer:

tino4ka555 [31]3 years ago

4 0

Answer

Slope: -2

Step-by-step explanation:

Perpendicular slope is the negative reciprocal of the original slope.

The original slope was 1/2. Flip it. 2/1=2. Now change the sign to -2.

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PLS HELP ASAP I WILL GIVE BRAINERLIST PLUS 10 POINTS

Tresset [83]

It’s the 3rd answer choice

6 0

3 years ago

For one History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly. What percent

muminat

Answer:

Keith scored 70% on the History test.

Step-by-step explanation:

We have been given that for History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly.

To find the percentage Keith got on History test, we will have to figure out 28 is what percent of 40.

$\text{Percentage scored by Keith on History test}=\frac{28}{40}\times 100$

$\text{Percentage scored by Keith on History test}=0.7\times 100$

$\text{Percentage scored by Keith on History test}=70$

Therefore, Keith scored 70% on the History test.

5 0

3 years ago

A student earned a grade 80% on a math test that had 20 problems. How many problems on this test did the student answer correctl

prohojiy [21]

Answer:

Step-by-step explanation:

5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80

8 0

3 years ago

Help please and explain why

andrew-mc [135]

Answer:

9 cm tall

Step-by-step explanation:

The formula to find the volume of a cylinder is

V = pi r^2 (h)

pi r^2 is the base

Plug in the volume and the base

198 = 22 (h)

divide by 22

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7 0

3 years ago

5x is equal to 8X raise to power - 1/3

goldenfox [79]

Answer:

No solutions.

Step-by-step explanation:

5x = 8x^-1/3

Divide 8 into both sides.

5/8x = x^-1/3

Divide both sides by x.

5/8 = x^-4/3

Multiply both sides by the exponent -3/4.

5/8^-3/4 = x

1.422624 = x

Plug in 1.422624 for x to check.

It does not work. There are no real solutions.

7 0

3 years ago